Map mounting device



Nov. l1, 1941. w. F. scARBoRouGH ETAL 2,262,624

MAP MOUNTING DEVICE Filed Deo. -15, 1940 5 sheets-sheet 1 W l .Wn 1 -f www w n, im Vn. vd .Vd 5w IWI' .Il l 1 m mw NN @QN .Wwf lfm m 1L 1 .w 12-1 NI llfr. L? a Illll m Inv II.. I |l| l l5 Q Nw @ww WN; NN L Miln .5 c M Svi w\{,m NN Q NN\\.\ RN fu New. l, 1941;v w. F. scARBoRoUGH TAL 2,262,624

MAP MOUNTING DEVICE Filed Dec. 15, 1946 5 sheets-gheet'lz Aw .1., g .Y .a C i MJ m1 ZMMM Q.

Nov. 1L 1.941. w. FfsCARBoRoUGl-i E'r AL 2,262,624

MAP MOUNTING DEVICE Filed Dec. 13, 1940 5 Sheets-Sheet 5 Nov. l, i942. w, F, SCARBORQUGH ET AL 292629624 MAP MOUNTING DEVICE Filed Deo. 13, 1940 5 Sheets-Sheet 4 S w l n ff. m W, Il lfrlilln:IIJHH:e-- a -y E Nov. 11, 1941. w. F. scARBoRouGH ET Al. 2,262,524

MAP MOUNTING DEVICE Filed Dec. 13, 1940 5 Sheets-Sheet 5 Patented Nov. 11, 1941 MAP MOUNTING DEVICE William F. Scarborough and Gildo Tieri, Chicago Heights, Ill., assignors to Weber Costello Company, Chicago Illinois Heights, Ill., a corporation of Application December 13, 1940, Serial No. 369,990

Claims.

This invention relates to a mounting device for display sheets such as maps and the like and especially to the types of roll-up display sheets or maps which are commonly used in educational institutions and other places. More particularly, the present invention relates to a map mounting device which is especially adapted for use in connection with roll-up maps which include a channel-shaped attaching or backing member of the type which is disclosed, for example, in the Hanses Patent No. 1,866,208.

Heretofore in the arty it has been the general practice for each of the various manufacturers of roll-up display sheets or maps, having a channel-shaped backing, to provide or employ in conjunction with the same a specially constructed mounting device which could be used, in general, only with the roll-up display sheets or maps of that particular manufacturer, or with the roll-up maps of a limited number of other manufacturers, for the purpose of mounting the same upon a support such as the wall of a school room, or in a box-like roll-up map case or housing, or like place. One result of this practice has been that educational institutions and like places have been compelled to purchase a plurality of separate mounting devices to accommodate the roll-up maps of the various manufacturers of such maps, thus causing schools and like places which use such maps a multiplication of expense.

Accordingly, a primary object of the present inventionA is to provide a new and improved map mounting device for roll-up maps or like display sheets, having a channel-shaped backing member, and on which the roll-up maps of all of the various manufacturers of such maps may readily be mounted and secured in position of use thereon and from which such roll-up maps may readily be removed.

Another object of the present invention is to provide a new and improved map or display sheet mounting device by means of which the rollup maps or display sheets of the various manufacturers thereof may be readily mounted upon a supporting surface such, for example, as the wall of a school room, or upon other supporting surface, and either with or without a box-like map case or housing.

A further object of the present invention is to provide a new mounting device for roll-up maps or like display sheets which is relatively simple and inexpensive in construction but at the same time eicient in use.

Heretofore in the art of roll-up map or display sheet mounting devices it has been customary or obscures substantially `a manner that the roll-up maps may to construct the same in such a manner that when one of a group of roll-up maps lmounted thereon is unrolled or pulled down it conceals the entire area of the other maps behind it which have previously been unrolled or pulled down so that it is possible to display only one map at a time in the use of such roll-up map mounting devices even though a plurality of roll-up maps or roll-up map assemblies may be mounted thereon. Another object of the present invention is to construct the new map or display sheet mounting device in such a manner that in the use thereof not only may a group or plurality of roll-up maps be mounted thereon but so that two roll-up maps, mounted on the new map mounting device may be unrolled or pulled down and displayed simultaneously without removing either of the same from the new map mounting device and in such a manner that neither of the maps thus displayed obscures or conceals any part of the printed area of the other map which is being displayed.

Another object of the present invention is to construct the new map mounting device in such be readily removedk therethe exercise of and easily mounted thereon and from without the need for or any particular skill.

An additional object of the present invention is to provide a new and improved bracket for supporting the new map mounting device, and

the roll-up maps supported thereby, against lateral or sidewise swaying when in position of use.

Another object of the invention is to provide a new and improved roller-supporting bracket for a roll-up display sheet or map.

A further object of the invention is to provide a roller-supporting bracketv for a roll-up map and which said bracket includes a new and improved stop construction or arm for stopping the lower roller of the roll-up map in its proper position when the map is in its raised or rolled up position and in such a manner as to minimize the wear on the roll-up map sheet and the `lower roller which is attached thereto.

Another object of the present invention is to construct the stop arm of the aforesaid bracket in such a manner that it will stop the lower` roller of the roll-up map assembly in its proper position and alignment and in such a manner that it will not jump above the bracket during the stopping operation.

Other and further objects of the present in- 557 vention will be apparentfrom the following 2,., ,...g j ,al

description and claims and are illustrated in the accompanying drawings which, by way of illustration, show preferred embodiments and the principles thereof and what we now consider to be the best mode in which we have contemplated applying those'principles. Other embodiments of the invention embodying the same or equivalent principles may be used and vstructural changes' may-be made asy desired by those skilled in the art without departing from the present invention and the purview of the appended claims. i

In the drawings:

Fig. 1 is a front elevational view showing a preferred form of the newjmap` ordisplay sheet mounting device and showing, by way-of illustration, two roll-up maps mounted thereon;

Fig. 2 is an enlarged fragmentary front elevational view of the new map or display sheetY mounting device and showing, in section, the channel-shaped attacl'iingv member of a typical roll-up map assembly and illustrating the manner inA which-such a` roll-up map assembly is mounted on the fm'ap mounting device which is showninFig. 1; f. I A t Fig;ft3 is ar side elevational View, on line 3---3 in Fig. 1, showing the newmap or display sheet mountingdevice imposition of use and illustrating a preferredmanner of .suspending the same upon a verticallylextending supporting surface such, .for example, as the .wall of a school room Ofi'hf ke.-

i f Y Y g Fig. 4 is a .fragmentary front perspective view of the new Vmap or display sheet mounting device which is shown in J'Figst 1 to 3, inclusive; -v Fig. 5is a horizontal sectional View on line 5 5 in Fig.4;w l Y I Fig. v 6 is an `enlarged vertical sectional view on line V6-,16Y in Fig. 1;; t Y l Fig. 7 is a fragmentary front perspective View ofthe new map mounting device which is shown in Figs. 1 to 6, inclusive, and showing in detail the construction: of one form of supporting meansV -whichmay 1be employed in conjunction therewith; l Y

.Fig. 8 isa A,frontelevational view,similar to Figal.- but illustrating the manner in whichy two roll-up`V maps, mounted on the-new map mounting device, may beunrolled or pulled downand displayed .simultaneously without removing either'fof thesame1 from` the` new map mounting device and in such amanner that neither of the maps' thus displayed obscures orl conceals any printedv part or area of the other map which is'fbeing displayed;l Y

Fig. 9 isa' vertical sectional view, lsimilar -to n ew form of roller-support- Fig. l6, but showing a ingbracket; and o Y Fig.',10 is Aa perspective view of the new rollersupportingA bracket. l ,i

. A .preferred `embodiment of the newmap or displayshfeetmounting.` .device isv showntin Figs. 1v to."7i,' inclusiveof ,thedrawings wherein it is generallyindicated at I0, and comprises a main supporting memberin the form of -a substantiallyiiat metal plate II` which may be formed in any suitable manner and vfrom any suitable material as, forexample, by .stampingy the sameV fro`mlflat,metal-stock, Infthe preferred vernbodrerit'of theL inventlonrwhchlis shown in thev drawings, fthe main supporting member or plate II. i'sprovided at each Vside `or marginal edgel thereof witha rearwardly extending. flange I2; the purpose of v.these flangesv I2 being explained bergerie-r if Formed upon and integrally with the main supporting member or plate II, preferably adjacent each side edge thereof (Fig. 1), is a row of map-supporting elements I3, each of which is preferably formed in the shape of a hook or tongue by stamping out the material of the plate II, thereby forming an opening I4 therein. It will be noted, in this connection, that each of the tongue or hook-shaped map-supporting elements I3 includes a portion which extends upwardly in a direction parallel to the face of the main supporting member or plate II, but at some distance forwardly of the front face thereof, and that each of these map-supporting ele` ments also includes a portion I5 which projects or extends at right angles to the face of the plate II.

Similarlyv formed in the plate II, adjacent l LFormed Yin 'the main supporting: memberk `or plate Il, preferably approximately midway between and extending parallel to the` side edges thereof (Figs. 1, 2, 4 and 7), and between the two rows of hook-shaped elements I3a, is a substantially channel-shaped groove I6 which opens upon the face of the plate II. Slidably mounted in this groove I6 is a substantially flat latch bar I'I'whichr is guided between the side walls of the groove I6 and formed in this latch or slide bar I7 is a row of latch elements or tongues I8. Each of thesetongues or latch elements I8 on the slide or latch bar I'I has a portion .which extends substantially parallel tothe face ofthe slide or latch bar Il and in a downward direction relative'to the slide or latch bar I'I and relative to the plate or main supporting member II. Each of these latch tongues I8 on the slide or latch bar I7 also has a portion I9 which extends. at right angles to the face of the slide or latch bar I1 and these latch tongues are preferably'formed by stamping out the material of which vthe slide or latch bar I'I is composed, thereby forming an opening 20 in the slide or latch bar II.l

` The slide or latchbary I'I is slidably retained inthe groove II 'by ymeans of suitable fastening elements such as the headed` rivets 2| which are anchored ,in or secured to .the plate or main supporting member II,

the slide bar I 1. v l Formed in the slide or latch-` bar I'I,v at the, lower l end thereof, is -a forwardly projecting portion`23 `which provides a combination finger grip and latching element, the purpose of which will be explained hereinafterf-and slidably mounted on theY main supporting member of plate I I,'at.thefrntthereof andfor movement in a.' direction y, transverse or at right angles to the long axis and direction of movement of the slide or latch barf'll, is an auxiliary latch bar or,member,24. "I'his'latch`member 24 is slidably `retained 'orf by means of suitable fastening" elements such as the headed rivets 25 which are anchored in or secured to thel main supporting memberor plate` .grip', and the otherend portion of `this auxiliary each of these rivets 2IN projecting through a vslot 22 which is formed in I the main ,supporting plate II Each of the channel-,shaped attaching memlatch bar 24 has a lower cam surface or beveled edge 28 formed thereon, and an upper cam surface or beveled edge 28a, and these cam surfaces 28 and 28a are adapted for latching engagement, at different times, with the latch portion 23 of the main latch bar I1, for reasons which will be described hereinafter.

Various types of devices may be provided for suspending the new map mounting device from or upon a supporting surface such, for example, as a wall of a school room, in a box-like map case, or the like, and at an angle thereto, as shown in Fig. 3. However, in order to illustrate one, and a preferred, manner in which this may be accomplished the new map mounting device is shown as being provided with a generally U-shaped and preferably metal member or bale 29 which includes a pair of side arms 39 and each of these side arms 39 is pivotally connected, as at 3I, to one of the side flanges I2 of the main supporting member or plate II. The U- shaped member or bale 29 also includes a rear or bight portion 32 which extends between and interconnects the side arms 39 thereof. As best shown in Fig. 7 the material of which the rear portion 32 of the bale 29 is formed extends in a generally horizontal direction or plane whereas the material of which the side arms 39 is formed extends in a generally vertical plane, these parts being joined by forming a twist 33 in the metal of which the bight portion 32 is composed, at a point adjacent to the intersection or junction of the side arms 39 with the rear portion or cross arm 32 of the bale 29.

Formed in the rear portion or cross arm 32 of the bale 29 is a pair of spaced openings 34 and each of these openings 34 is adapted to receive the upwardly extending portion 35 of a wall hook 33 which may be mounted in a supporting surface 31 such as the wall of a school room, in a box-like map case, or the like.

Pivotally connected to each of the side arms 39 of the bracket 29, as at 55, is a relatively short arm 56 and each of these arms 56 has an angled rear end portion 51 which is adapted to be secured, by means of a suitable fastening element such as the screw 58 (Fig. 3), to a supporting surface such as the wall 31 of a school room or the like.

As stated hereinbefore, the new map mounting device is so designed and constructed that the roll-up maps of the various manufacturers of such maps may be readily mounted thereon and removed therefrom. While such roll-up maps, as are shown in Figs. l to 7, inclusive, do not form any part of the present invention, two of the same are indicated at 33 in the drawings and the construction of such a roll-up map or map assembly will now be briefly described so that the use of the same in conjunction with the present invention may better be understood.

Thus it will be noted that each of the rollup maps 38 includes a pair of end frames 39, a spring-urged roller 40a which is rotatably mounted or journaled at its ends in the end frames 39, a roll-up map or display sheet 4D which is adapted to be wound upon and to be unwound from the roller 49a, and means in the form of a channel-shaped member 4I for at-` taching the roll-up map assembly 38, as a whole, to the map mounting device I; each of the end frames 39 of the roll-up map 38 being attached, as at 42, to the channel-shaped attaching member 4I).

bers 4I opens tothe rear of the map assembly (Figs. 3 and 6') and each of ythese 'channelshapedl attaching members 4I has an upwardly extending lower rear flange 43 and a downwardly extending top rear flange 44, as shown in Figs.` 1,2,3and6. -v

A pair of spaced resilient or rubber bumperv elements 59 are preferably attached to the plate or main supporting member II at the bottom and at the rear side thereof, as at 60 (Fig. 6), and when the new map mounting device is in position of use, as in Fig. 4, these resilient or bumper elements 59 are adapted to abut againstV the supporting surface 31, which may be a wall or blackboard in a school room, so as to prevent the new map mounting device from marring thev same. i

While they differ otherwise in construction', all of the roll-up maps or roll-up assembliesfof the various manufacturers of such maps, of the character with which the new map mounting' device is intended for use, have one feature in common and that feature resides in the fact that all of such roll-up maps or map assemblies includes a channel-shaped attaching or backing member, which is either identical to or similar in construction to the channel-shaped attaching member 4U, for attaching the roll-up map assembly to the various types of map mounting devices which the various manufacturers of such maps commonly employ for mounting the same in position of use upon the wall of a school room, in a box-like map case, or like places.

When the new map mounting device is not in use the U-shaped bracket 29 is collapsed against the plate II and between the side flanges I2 thereof. However, in the use of the new map mounting device the same may be attached to or suspended from a suitable supporting surface such, for example, as the wall of a school room, or from a blackboard, in a box-like map case, orr like place, in any suitable manner, and for the purpose'of illustrating a typical use or installation of the new map mounting device the same is shown as being suspended from and at an angle relative to a vertical wall 31, this being accomplished by means of the wall hooks 35-36 which project through the openings 34 which are' formed in the rear portion or cross arm 32 of the bale 29 (Fig. 3). It will be understood, in this connection, that the purpose of mounting the new map mounting device in tion in which it is shown in Fig. 3 is to enable the roll-up maps or -display sheets 40 to be pulled out and extended downwardly parallel to each other as shown in Figs. 3 and 6. It will also be noted, in this connection, that when the new map mounting -device is so suspended the bumpers 59 which are mounted on the lower end portion of the main supporting member or plate I1 bears against the vertical supporting surface or wall 31 and prevent marring or scratching of the latter.

It will also be noted, in this connection, that when the new map mounting device is mounted in position of use, as in Fig. 3, portions 60 of the arms 30 of engage the body of the plate bracket 30 in extended position the bracket 29 II to hold the (as in Figs. 3

and '1) and arms 5B prevent the bracket 29-y .30-32 and the plate I1 and the roll-up maps carried thereby from swaying or tilting laterally or sidewise, due to the weight of the maps the angular posi-` the inner end in Figs.' 1, 3, 4 and `or otherwise,and hence serve tolkeepfthe-entire assembly in proper position. The slide or latch bar I1 is normally held in raised position by projecting the 'beveled upper edge'28a of the latch bar 24 under the angled lowerendportion 23 of the slide bar I'I` and the bar I'I is latched in its lowered position byprojecting the beveled lower edge 28` of the latch bar24 over the angled-lower end portion-23 of thelslidelbar I1. f i In order tojmount one or a pluralityof rollup maps or map' assemblies on the new. map, mounting device the downwardly extending upperrear flange 440i the channel-shaped attaching. member. 4I of each roll-up map or map assembly is inserted over and is suspended from a horizontally aligned row of the upwardly.` extending tongues or supporting elements I3.and I3a on the kplate orsupporting member II in such a manner that each of the roll-up maps or map assemblies is `supported in a generally horizontal position upon the face of the plate or main 'supporting member I I yas shownin Figyl. Accordingly, after the desired number of rollupymaps Lor `roll-.up map assemblies has been mounted ...upon the ,mainr supporting member or plate .I I, in the manner described above, the latch or slide bar II is lowered, by pressing downwardly upon: the lower end or finger. grip portion 23 thereof, the slide or latchxbar II being thus lowered into the position in which it is shown in Figs. 1, 2, 3 and. As and when the slide or latch bar I1 is thus lowered the downwardly extending latch tongues I8 on the slide' or latch bar I'I engage in front of, and enter into latching engagement with, the downwardly extendingvrear flange 43 ofk the channel-shaped attaching member 4 I,- as best shown in Figs. 3 and 6. TheV auxiliary latch bar 24 is then slid into latching position above the angled lower end portion 23 Vof the slide bar I'I A(from right to left as Vseen from the front of the main supporting member or-plate II) thereby projecting the lower cam A surface 28 `of `the' auxiliary latch bar 24 over and-into latching engagement with the Yangled lower end portion 23 of the slide or latch barY I1, 'as'shown 6, thereby latchingthe slide or VlatchbarII in lowered position and, at the same time,.latching the roll-up map assemblies upon the new map mounting device since when the parts are thus latched and the upwardly extending supporting elements I3 on the plate or main supporting the downwardly extending rear ilange 44 of the channel-shaped attaching member 4I and the downwardly extending latch elements or tongues I8 onthelatch bar I'I are engaged runder -the upwardly extending rear flange 43 ofthe channelshaped attaching memberY 4I the roll-up maps or map assemblies are latched in placeand cannotbe `removed from vthe .new map mounting until the parts are unlatched in Qthe manner which will now be described. f

In' order to remove any one or all of the roll-up maps or vmap assemblies from the new map mounting device it is merely necessary to slide the auxiliary latch bar24 (from left to right as seen from the front of the plate or main supporting member II) out of latching engagement with the angled lower end portion-23 of. the'main slide or latch bar Il, andthen to raise the main slide or latch bar Il, which4 may then' projecting. the' be-latched in raised position by c. beveled upper edge 28a of the latch bar 24 under the-angledflower end portionV 23 of the slide bar member I I areengaged underthe new map mounting device by lifting the downwardly extending rear flange 44 of each of the channel-shaped attaching members 4I off from the two horizontally aligned and upwardly extending tongues or supporting elements VI3 on which it is mounted and, at the same time, any maps which itmay be desired not to remove from the new map mounting device will remain supported thereon by engagement of the downwardly extending upper flange or rail 44 of the channel-shaped backing member 4I (Fig. 3) with the upwardly extending hooks I3 and I3a.

It will vbe noted that in the userof the new map mounting device, after each of roll-up maps or roll-up map assemblies has been mounted thereon, in the manner described hereinbefore, and before the main slide or latch bar Il is pulled down into latching position, each of the roll-up map assemblies 38 may be adjusted transversely or horizontally of the main plate or supporting member I I by sliding the channel-shaped attaching member 4I thereof on the row of four (or more if desired) horizontally aligned ksupporting elements or hooks I3 and I3a on which it is mounted. Hence, as shown in Fig. 8, the entire printed areas of the two roll-up maps may be displayed upon the new map mounting device at one time by projecting onemap assembly (or group thereof) as far to one side supporting member or plate I I as it is possible to project or extend the same, while still having each of such map assemblies supported upon at least three of the supporting tongues or hooks I3 and I3a and in position to be latchingly engaged with one of the downwardly extending latch tongues I8 on the slide bar I1 when the latter is pulled down into latching position, and, similarly, projecting the other map or map assembly as far to the other main supporting member II as it is possibleto project the same while still supporting the channormal or racked position, as in Fig. 1.`

A modified form of roller-supporting.bracket is illustrated inFigs. .9 and 10 wherein all parts which are identical in construction to theparts to 8, inclusive, are: given the same reference numerals followed by' the letter b, and only'such parts 1in Figs. 9 and, V l0 lwill be described herein as are diierent from which are shown, in Figs. 1

corresponding elusive.

A preferred embodiment of the new rollersupporting or end bracket `is illustrated in Fig. l0 wherein the same is generally indicated at 45,

parts shown in Figs. 1 to 8, in-

said bracket being preferably formed as a singleV unitary piece of metal as, for example, by die" of the main side of the plate orslid down intov the maps, thusr back into their The bracket 45 includes stamping orotherwise. a body 46 and this body 46 has a flange 41 which is attached to a channel-shaped attaching or backing member 4Ib, which is identical to the member 4'I (Figs. 1 to 8, inclusive) as by a screw 48 which is inserted through an opening 49 which is formed in the flange 41 (Fig. 10) the flange 41 likewise being provided with a pair of spaced bosses 6D which fit into corresponding recesses or openings 6I in the channel-shaped backing member 4Ib so as to effect a firm connection between the brackets 45 and the backing member 41h.

The bracket 45 has an arm 5i) and this arm 5l) has an arcuate-shaped stop portion l (Figs. 9 and In the use of the new end bracket which is il-lustrated in Figs, 9 and 10 one of the same may be arranged at each end of the map roller 54 and associated roll-up map 4M), and the trunnions of the map roller 54 may be arranged in suitable openings, indicated at 53, in the brackets 45, and the brackets 45 and attached map roller 54 and roll-up map 4Gb may then be mounted in position of use upon the new map mounting device, in the -mannerl which is shown in Fig. 9 and which has already been described hereinbefore in connection with the map mounting device which is shown in Figs. 1 to 8, inclusive.

It will be noted in connection with the new bracket 45 which is illustrated in Figs. 9 and 10 that the stop portion or arm 50.-5I thereon is disposed above the map Mib when the latter is in its rolled up positionas in Fig. 9, rather than being disposed at the side or bottom of the bracket, as in the prior art. This has the advantage that when the map is rolled up the bottom so-called roller or rod 52' thereof is disposed out of the way and when other maps which are mounted upon the new mounting device, together with the map 46h, are pulled down the back of the top map will not rub against the mounting of the map underneath, thereby eliminating damage which would otherwise result to the maps in the form of wrinkling, creasing or wearing at points of contact.

It will likewise be noted that the stop 50--5I is mounted high up on the bracket 45 and projects forwardly oi the roller 54 so that it effectively serves to stop the bottom roller or rod 52 in its proper place when the map is rolled up and particularly when the map is rolled up rapidly, thereby preventing the lower roller or rod 52 from jumping up onto or above the supporting brackets for the roll-up map, which frequently was a source of trouble and annoyance in the use of prior art brackets since in the use of the latter the bottom roller or rod would frequently jump up above or onto the bracket, especially when the map was rolled up rapidly, thus making it diflicult and inconvenient to get it back in its proper place.

It will likewise be noted that the point of contact between the stop arm 551-51 and the bottom roller or rod 52 of the map (Figs. 9 and 10) is an arcuate-shaped metal bearing surface having no sharp points or ends as in the prior art brackets, thereby reducing the amount of wear on the bottom roller or rod 52 of the map 40h, and holding said rod or roller 52 rmly in place when the roll-up map 4th is in its raised position.

While we have illustrated and described preferred forms oi construction for carrying our invention into effect, these are capable of variation and modification, without departing from upwardly extending the spirit of the invention. We, therefore', donot wish to' be limited'to the precise details of conavail ourselvesV of such variations and modications as vcorne" struction set forth, but desire to within the scope of theappended claims.

We claim:

1. In a map or display sheet mounting device which is adapted to Support a roll-up map or dis-- play'sheet assemblyv ofthe type which includes a roller, a supporting frame for said roller,l a rollup map or display'sheet adapted to be wound uponand to be unwound from said roller, and a channel-,shaped member having a portion attached to said a downwardly extending upper flange and an upwardly 4extending lower flange `disposed rearwardly of said portion, supporting member' having a being adapted to be supported from the saidsupporting member vby engaging the said downflange oi the said chanwardly extending upper nel-shaped member with the said supporting elements in the said row of the same, and 4a latch,

member movably mounted upon the said supporting member for movement in la direction trans-3 adapted for latching said supporting member.

supporting elements on said supporting member has an upwardly extending portion which is spaced from the body of the said supporting member and in which the said latch element on the said latch member has a downwardly extending portion which is spaced from the body of the said latch member.

3. The map or display sheet mounting device dened in claim 1 which includes a plurality of generally horizontally extending rows of the said supporting elements and in which the said latch member has a plurality of said latch elements arranged at spaced intervals thereon and in which each of said latch elements is adapted for latching engagement with the said upwardly extending lower flange of one of said channelshaped members.

4. The map or display sheet mounting device dened in claim 1 in which the said latch member is slidably mounted and guided in a generally channel-shaped groove which is formed in the said supporting member.

5. The map or display sheet mounting device deiined in claim 1 in which the said supporting member is a substantially flat metal plate having a substantially channel-shaped groove formed therein approximately midway between its side edges and opening upon the face of the said plate, and in which the said latch member is a substantiallyl flat meta] bar slidably mounted and guided in the said channel-shaped groove.

6. The map or display sheet mounting device deiined in claim 1 in which the said supporting member is a flat metal plate having a channelshaped groove formed therein approximately midway between its side edges and opening outwardly upon the face of said flat metal plate and in which the said latch member is a flat metal bar slidably mounted and guided in the said channel-shaped groove and in which the said supporting frame and includingy the combination'of a., fOWfOf Supporting., elements thereon, the said roll-up map assembly;

latch element thereonk engagement with thel said) lower 11ans@ 0i the. Said; channel-shaped member so as to vlatch the said roll-up` map assembly in position of use upon thel supporting elements are formed integrally with the said flat metal plate as tongues stuck out from the body thereof and in which the said latch element is formed integrally with the said slidable metal bar as a tongue stuck out `from the body of the said slidable metal bar.

7. The map or display sheet mounting device defined in claim 1 in which the said supporting member is a at metal plate having a channelshaped groove formed therein approximately midway between its side edges and opening outwardly 4upon the face of said flat metal plate and in which the said latch member is` a iiat metal bar slidably mounted and guided in the said channel-shaped groove and in which the said supporting elements are formed integrally withrthe-said ilat metal plate as upwardly extending tongues stuck out from the body thereof and in which the said latch element is formed integrally with the said slidable metal bar as a downwardly extending tongue stuck out fromthe body of the said slidable metal bar.

8. The map or display sheet mounting device defined in claim 1 n which the said latch member is slidably mounted upon the said supporting member and has an angled lower end portion providing a nger grip for manually operating thesaid slidable latch member rand which said map mounting device includes an auxiliary latch member which is slidably mounted upon the saidv supporting member for movement in` a direction transverse to the extent and direction ofv movement of the said Alrst-named slidable `latch member and in which the said auxiliary latch member has a portion which is latchingly engageable with the said angled lower end portion of the said irst-named slidable latch member so as to hold the said latch element thereon in latching engagement with the said upwardly extending ange of said channel-shaped member.

9. 'I'he map or display sheet mounting device defined in claim 1 which includes means for latching the said latch member in position to hold the said latch element thereon in latching engagement with the said upwardly extending flange of the said channel-shaped member.

10. The map or display sheet mounting device defined in claim 1 which includes a plurality of generally horizontally extending rows of the said supporting elements and in whichthe said latch member has a plurality of said latch elements arranged at spaced intervals thereon and in which each of said latch elements is adapted for latching engagement with the said upwardly extending lower iiange of one of said channelshaped members and in which each of the said roll-up map assemblies mounted upon the `said map mounting device may be slid in a generally horizontal direction upon its supporting elements, before being latched in position of use, whereby the entire printed area of one of said roll-up maps may be suspended and displayed from or at one side of the said supporting `mem-r ber while simultaneously therewith the entire printed area of another one of said roll-up maps may be suspended and displayed from the other or opposite side of the said supporting member.

WILLIAM F. SCARBOROUGH. GILDo TIERI. f 

